but a steel fence built in the name of national security divides this border town. i've come to meet jose's family they live just blocks from where jose was killed. >> his brother diego worked at a shop in the center of town. jose would often meet him to help mop the floor before closing. that night, he never made it. jose antonio was shot to death, right on this street corner. the walls on this doctors office are still riddled with bullet holes. now, the border patrol's explanation for what happened hinges on the fact they say their agents were threatened by somebody throwing rocks on this side of the fence. but standing here, the first thing you ask yourself is: could a 16 year old boy really threaten somebody standing on top of what's at least a 20 foot cliff, and on the other side of that fence? whatever took place here that night, there's video cameras right there which recorded everything that happened. but the border patrol and federal investigators have refused to share that surveillance video, so we're left to piece together the clues. on the night jose die